Description

Tannic Acid is a naturally occurring polyphenolic compound, widely recognized for its astringent and protein-binding properties. This versatile chemical is essential for applications demanding high-purity, consistent quality, and reliable supply. Key industries that utilize this material include pharmaceuticals, food & beverage, leather tanning, and water treatment. Its efficacy as a clarifying, precipitating, and stabilizing agent makes it a critical component in numerous industrial and manufacturing processes.

Application

• Pharmaceuticals & Nutraceuticals: Used as an astringent in medicinal preparations, a clarifying agent in brewing, and a precipitating agent for alkaloids.
• Food & Beverage Industry: Employed as a clarifying agent for wine, beer, and fruit juices, and as a flavoring agent.
• Leather Manufacturing: A primary agent in the vegetable tanning process for hides and skins.
• Water Treatment & Chemical Processing: Acts as a coagulant aid and a scale inhibitor in boiler water treatment.
• Dyeing & Ink Production: Serves as a mordant to fix dyes on textiles and as a component in writing inks.
• Analytical Chemistry: Utilized as a reagent for the detection and precipitation of proteins, alkaloids, and certain metal ions.

Basic Information

Product Name	Tannic Acid
CAS No.	1401-55-4
Molecular Formula	C76H52O46
Molecular Weight	1701.20 g/mol
Synonyms	Tannin; Gallotannic Acid; Gallotannin; Chinese Tannin; Quebracho Tannin; Tannic Acid (FCC); Digallic Acid; Penta-m-digalloyl-glucose; 1,2,3,4,6-Pentagalloylglucose
EINECS	215-753-2

Quality Control

Our Tannic Acid is produced and tested under a stringent quality management system to ensure it meets the highest standards of purity and consistency. We offer grades compliant with FCC (Food Chemicals Codex) and technical specifications for industrial use. Every batch is accompanied by a comprehensive Certificate of Analysis (COA), detailing key parameters such as assay, loss on drying, and residue on ignition, which is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can lead to caking and degradation.

Specification

Item	Specification
Appearance	Light yellow to tan amorphous powder
Identification (IR)	Conforms
Assay (Tannic Acid)	Min. 98.0%
Loss on Drying	Max. 7.0%
Residue on Ignition	Max. 0.5%
Solubility (in Water)	Freely soluble, solution may be opalescent

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.